Organisation internationale de normalisation

7H.222.0 | MPEG-2 Systems extension for SVC

Design features:

• 
  T-STD / P-STD model slightly extended: No additional buffer requirement
  
• 
  Transport of AVC in its own PID
  
• 
  Prefix NAL units are part of AVC PID
  
• 
  SVC “part” of AVC stream in one or more PIDs
  
• 
  New stream type 0x1F for SVC sub-bitstreams
  
• 
  Hierarchy_Descriptor for dependency indications
  
• 
  New SVC_Extension_Descriptor for scalability information
  
• 
  Access unit delimiter (AUD) like NAL unit in SVC sub-bitstreams
  
• 
  Access unit reassembly based on DTS and SVC AUD
  
• 
  For the temporal scalability case, a pointer to DTS of “lower” sub-bitstream is added, if needed
  
• 
  SVC subset SPS and SVC PPS go into SVC PID
  
• 
  SVC-related SEI messages may go into SVC sub-bitstream, requires in-Access Unit re-ordering
  

Status:

All open issues and NB comments addressed. Some editing still required. Final draft of text of ISO/IEC 13818-1:2007/FDAM3 with 3 weeks editing period.
The text of the current draft was briefly reviewed. Implementation available? yes, by FT and HHI. Will be presented at 16:00 (Thursday).
The JVT has approved the document.